Featuring easy to read LED status indicators, the FireAngel FA3820 carbon monoxide alarm is powered by a 10 year sealed lithium battery and is certified for use in your home or whilst travelling. Unlike other CO alarms, the FA3820 features a pre-alarm warning which encourages ventilation of your property when low levels of carbon monoxide are detected. The combined test / hush button allows for low volume weekly testing, and the Sleep Easy function can silence low battery / end of life warning chirps for up to 8 hours with a single button press.
Please note: Rawl plugs and screws are not included. Alternative methods for wall mounting are available including self-adhesive pads.
Single press for a low volume test, double-press for full volume
Separate Ventilate, CO Alarm, Fault, and Power indicators
Certified for home, caravans, motor homes, and boat use
'Pre-alarm' warning encourages ventilation at low levels of CO
The FireAngel FAFA3820 is supplied with the following components.
All of our product reviews are written by real customers that have purchased this product from us and are published without modification.
G H
10th November 2025
P G
9th April 2024
All OK so far
Needed a Carbon Monoxide Alarm, found this and all seems good so far, no issues.
J G
7th April 2024
Small clean design good packaging
G H
5th February 2024
Works well and is attractively designed.
J B
14th January 2024
Neat, inconspicuous and easy to use.
| Product Code | FAFA3820 |
|---|---|
| Brand | FireAngel |
| Approvals & Markings | CE Marked |
| UKCA Marked | |
| Battery Type | Sealed Lithium |
| CO Alarm Level (parts per million) | From 50ppm |
| CO Detection Level (parts per million) | From 10ppm |
| Colour | White |
| Compliance | BS EN 50291-1 (Domestic) |
| BS EN 50291-2 (Caravans / Boats / Travel) | |
| Connection | Standalone |
| Display | LED Indicators |
| Environmental Suitability | Caravan, Camping & Boats |
| Home | |
| Travel | |
| Fixing Options | Freestanding |
| Wall Mounted (Fixings Included) | |
| Installation Position | Mount At Head Height |
| Local Legislation | Scottish Legislation (2022) |
| Welsh Legislation (2022) | |
| Material | Plastic |
| Operating Temperature | -10°C To +40°C |
| Power Type | Battery Powered |
| Recyclable | Yes - Valpak's WEEE Distributor Take-back Scheme |
| Relative Humidity | 30% To 90% |
| Sensitivity | 10ppm (Parts Per Million) |
| Sensor Type | Electro-chemical |
| Sound Level | 85dB |
| Warning Type | Audible - Alarm Sounder |
| Warranty | 5 Years |
| Lifespan | 10 Years |
| Dimensions (Unit) |
|
| Weight | 95g |
| Datasheets |
The product is well made to a good quality. It was easy to install and set up.
Product arrived in good time and was well packaged for posting.